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[henrikhimself]

• Improve REVERSEPROXY_HOME.
• Added test collection for environment‑variable tests
• Fix missing Aspire.Hosting reference in Aspire extension project.

[Copilot]

Pull request overview

This PR updates the REVERSEPROXY_HOME environment variable handling to require explicit configuration (throwing an exception instead of falling back to the user home directory), adds test infrastructure for environment variable tests, and fixes missing Aspire.Hosting package references.

Changes:

• Modified REVERSEPROXY_HOME handling to throw an exception when the environment variable is not set, instead of falling back to the user home directory
• Added "EnvironmentVariable" test collection attribute to CertificateConfigTests to prevent parallel test execution when manipulating environment variables
• Fixed Aspire extension project by changing SDK from Aspire.AppHost.Sdk to Microsoft.NET.Sdk and adding explicit Aspire.Hosting package reference

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/ReverseProxy/Certificate/CertificateConfig.cs	Changed REVERSEPROXY_HOME token expansion to throw exception instead of falling back to user home directory
test/ReverseProxy.UnitTest/Certificate/CertificateConfigTests.cs	Updated tests to reflect new behavior, added Collection attribute, and improved test cleanup
src/ReverseProxy/ReverseProxy.csproj	Version bump from beta5 to beta6
src/ReverseProxy.Aspire/ReverseProxy.Aspire.csproj	Changed SDK to Microsoft.NET.Sdk, added Aspire.Hosting package reference, and version bump
src/ReverseProxy.Aspire/ResourceBuilderExtensions.cs	Added required using statements for Aspire namespaces
examples/Aspire.Website/Views/Home/Index.cshtml	Simplified hosts file mapping instructions
Directory.Packages.props	Added Aspire.Hosting version and reordered package entries alphabetically

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[Copilot]

The Collection attribute references "EnvironmentVariable" but there is no corresponding CollectionDefinition class defined in the test project. In xUnit, when using the Collection attribute, you need to define a collection definition class with the matching name. Without the definition, this attribute has no effect and tests may run in parallel, potentially causing race conditions when manipulating environment variables.